In order to reduce broken ends of roving yarn and improve production efficiency,the causes and countermeasures of broken ends of roving yarn caused by hole and edge breakage of cotton web and cotton hanging through cotton channel,etc.in fore-spinning process are ana-lyzed.The key points of controlling broken ends through roving twist factor,roving elongation rate,parts,accessories and drafting parts,process design and qualification rate of machine,rack level,equipment operation,temperature and humidity,equipment cleaning and operation level are described in detail.The specific effects of measures that tackle key problems such as track-ing treatment and twist adjustment in production are summarized.It is pointed out that the re-duction of roving broken ends rate should be carried out from multiple dimensions and compre-hensively optimize the production process.In daily production,equipment maintenance,accurate process parameters,strengthening personnel training,and paying attention to the coordination of front and back processes should be done well to lay a good foundation for improving yarn quality and production efficiency.
NETL
NSTL
万方数据
